00780cam a22002531i 4500001001300000003000400013005001700017008004100034010001700075035001900092040001800111042001200129050001700141100002100158245009700179260002900276300002000305500004400325504004200369650002500411700003900436740003400475999001700509sa 68018799 DLC20260227112714.0830613s1960    io       b    000 0 ind    asa 68018799   a(OCoLC)9601242  aDLCcOAUdDLC  apremarc00aBJ2195b.S571 aSitorus, D     C10aMenudju efficiency penggunaan pesawat-telepon /coleh D. C. Sitorus [dan] H. Kamal Nasution.  aTjimahi :bDon,c[1960?]  a24 p. ;c16 cm.  aCover title: Bitjara setjara efficient.  a"Tjatatan" (bibliographical) : p. 24. 0aTelephone etiquette.1 aNasution, H. Kamal,ejoint author.0 aBitjaralah setjara efficient.  c88652d88652